Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban thu cua snippets" » "van thu cua snippets", "ban thi cua snippets", "ban tu cua snippets", "ban thuc cua snippets", "ban hu cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ban thu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban thu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban thu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban thu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.